<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>

</body>

</html>
<script>
    //12.把URL后面的参数转化成对象
    function parseQueryString(url) {
        var obj = {};
        var arr = url.split('&');
        for (var i = 0; i < arr.length; i++) {
            var arr1 = arr[i].split('=')
            obj[arr1[0]] = arr1[1]
        }
        return obj;
    }
    var str = "admin=user&pass=1234&sex=女"
    console.log(parseQueryString(str));
</script>